{"id":1873,"date":"2018-03-12T14:40:17","date_gmt":"2018-03-12T14:40:17","guid":{"rendered":"http:\/\/blogs.kent.ac.uk\/strongcorrelations\/?p=1873"},"modified":"2018-03-19T11:53:09","modified_gmt":"2018-03-19T11:53:09","slug":"time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order","status":"publish","type":"post","link":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/","title":{"rendered":"Time-reversal symmetry breaking in superconductors through loop Josephson-current order"},"content":{"rendered":"<ul class=\"kent-social-links\"><li><a href='http:\/\/www.facebook.com\/sharer.php?u=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/&amp;t=Time-reversal symmetry breaking in superconductors through loop Josephson-current order' target='_blank'><i class='ksocial-facebook' title='Share via Facebook'><\/i><\/a><\/li><li><a href='http:\/\/twitter.com\/home?status=Time-reversal symmetry breaking in superconductors through loop Josephson-current order%20https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/' target='_blank'><i class='ksocial-twitter' title='Share via Twitter'><\/i><\/a><\/li><li><a href='https:\/\/plus.google.com\/share?url=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/' target='_blank'><i class='ksocial-google-plus' title='Share via Google Plus'><\/i><\/a><\/li><li><a href='http:\/\/linkedin.com\/shareArticle?mini=true&amp;url=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/&amp;title=Time-reversal symmetry breaking in superconductors through loop Josephson-current order' target='_blank'><i class='ksocial-linkedin' title='Share via Linked In'><\/i><\/a><\/li><li><a href='mailto:content=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/&amp;title=Time-reversal symmetry breaking in superconductors through loop Josephson-current order' target='_blank'><i class='ksocial-email' title='Share via Email'><\/i><\/a><\/li><\/ul><p>We propose a superconducting instability where loop Josephson-currents form spontaneously within a unit cell at the critical temperature, Tc. Such currents break time-reversal symmetry (TRS) without needing an unconventional pairing mechanism. Using Ginzburg-Landau theory we show how they emerge in a toy model and estimate the size of the resulting magnetization, which is consistent with recent muon-spin relaxation experiments. We discuss the crystal symmetry requirements and show that they are met by the Re6X (X=Zr, Hf, Ti) family of TRS-breaking, but otherwise seemingly conventional, superconductors.<\/p>\n<p><a href=\"https:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Ghosh_S\/0\/1\/0\/all\/0\/1\">Sudeep Kumar Ghosh<\/a>, <a href=\"https:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Annett_J\/0\/1\/0\/all\/0\/1\">James F. Annett<\/a>, <a href=\"https:\/\/arxiv.org\/find\/cond-mat\/1\/au:+Quintanilla_J\/0\/1\/0\/all\/0\/1\">Jorge Quintanilla<\/a><\/p>\n<p><em>Time-reversal symmetry breaking in superconductors through loop Josephson-current order<\/em><\/p>\n<p><a href=\"https:\/\/arxiv.org\/abs\/1803.02618\">arXiv:1803.02618<\/a> [cond-mat.supr-con]<\/p>\n<p>(Submitted on 7 Mar 2018)<\/p>\n<ul class=\"kent-social-links\"><li><a href='http:\/\/www.facebook.com\/sharer.php?u=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/&amp;t=Time-reversal symmetry breaking in superconductors through loop Josephson-current order' target='_blank'><i class='ksocial-facebook' title='Share via Facebook'><\/i><\/a><\/li><li><a href='http:\/\/twitter.com\/home?status=Time-reversal symmetry breaking in superconductors through loop Josephson-current order%20https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/' target='_blank'><i class='ksocial-twitter' title='Share via Twitter'><\/i><\/a><\/li><li><a href='https:\/\/plus.google.com\/share?url=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/' target='_blank'><i class='ksocial-google-plus' title='Share via Google Plus'><\/i><\/a><\/li><li><a href='http:\/\/linkedin.com\/shareArticle?mini=true&amp;url=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/&amp;title=Time-reversal symmetry breaking in superconductors through loop Josephson-current order' target='_blank'><i class='ksocial-linkedin' title='Share via Linked In'><\/i><\/a><\/li><li><a href='mailto:content=https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/&amp;title=Time-reversal symmetry breaking in superconductors through loop Josephson-current order' target='_blank'><i class='ksocial-email' title='Share via Email'><\/i><\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>We propose a superconducting instability where loop Josephson-currents form spontaneously within a unit cell at the critical temperature, Tc. Such currents break time-reversal symmetry (TRS) &hellip; <a href=\"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/2018\/03\/12\/time-reversal-symmetry-breaking-in-superconductors-through-loop-josephson-current-order\/\">Read&nbsp;more<\/a><\/p>\n","protected":false},"author":976,"featured_media":1874,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[597],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/posts\/1873"}],"collection":[{"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/users\/976"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/comments?post=1873"}],"version-history":[{"count":4,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/posts\/1873\/revisions"}],"predecessor-version":[{"id":1880,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/posts\/1873\/revisions\/1880"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/media\/1874"}],"wp:attachment":[{"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/media?parent=1873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/categories?post=1873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.kent.ac.uk\/strongcorrelations\/wp-json\/wp\/v2\/tags?post=1873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}